Front | Back |
Mud, well sorted |
Chert
|
well sorted |
Coal
|
Poorly sorted, gravel, angular |
Breccia
|
Poorly sorted, rounded, gravel |
Conglamerate
|
Poorly sorted, angular, shell |
Coquina limestone
|
Well sorted, sand |
Greywacke
|
Reacts to acid weird rock |
Lime stone
|
Sand, well sorted, |
Argillaceous SandStone
|
Well sorted, mud |
Shale
|
Well sorted, mud |
Siltstone
|
Poorly sorted, sand, angular |
Arkosic sandstone
|
Well sorted, angular, sand |
Quartz sandstone
|
Sand, well sorted |
Furruginous sandstone
|
Well sorted, fossils, mud |
Carboniferous shale
|
Intermediate sorting, mud, once had fossils |
Fossiliferous limestone
|